Back to the System
// Service 01 — Web Development

I build the web that sells.

From conversion-optimised landing pages to full enterprise platforms. Every pixel engineered with purpose, every line of code built to scale.

0+
Projects Shipped
0
Avg. Lighthouse Score
0.9%
Uptime Delivered
0yrs
Shipping Since 2020
Products · Live & Interactive

Five things I build —
try each one right here.

Every product below is a real, working demo running in your browser — no screenshots. Click around, generate a live QR, flip the card, tap the menu.

PRODUCT 01
Live demo · switch templates

Websites & Landing Pages

Conversion-first marketing sites and landing pages. Hand-built, blazing fast, and tuned to score 95+ on Lighthouse out of the box.

  • SEO-ready, semantic, sub-second loads on real devices
  • Responsive from 320px to ultrawide, dark-mode aware
  • A/B-test hooks & analytics wired in from day one
Next.js · Astro · Tailwind · Vanilla
riddlecoding.com/preview
SaaS
Restaurant
Portfolio
// SaaS Platform
Ship features,
not infrastructure.
The deployment platform engineering teams actually enjoy using. Push to deploy in seconds.
Start free
Book a demo
// Fine Dining
A table awaits
at Maison d'Or.
Seasonal tasting menus crafted from the morning's market. Reserve your evening.
Reserve
View menu
// Portfolio
Designer &
maker of things.
Selected work across brand, product, and motion. Currently open to new projects.
See work
Get in touch
Lighthouse 98/100
PRODUCT 02
Live demo · click the sidebar

Web Applications

Full SaaS platforms, admin portals, and internal tools. Role-based, real-time, and architected to scale from your first user to your millionth.

  • Auth, billing, dashboards & CRUD — the full stack
  • Real-time data, websockets, optimistic UI
  • Typed end-to-end, tested, CI/CD on every push
React · Node · Postgres · Redis
◆ Atlas
Overview
Last 30 days · live
$48.2k
Revenue
2,940
Active users
+18%
Growth
Analytics
Conversion funnel
Visitors → Trials → Paid · 4.8% conversion
Users
Recent signups
EK Elena Kovač Active
JM Jonas Meyer Active
AR Amir Rahimi Trial
ST Sofia Torres Active
PRODUCT 03
Live demo · scan or generate

QR Menu

Contactless digital menus for restaurants & cafés. Diners scan a code, browse a live menu, and order — you update prices instantly, no reprints.

  • Real scannable QR — point your phone camera at it
  • Category tabs, photos, allergens, live cart
  • Edit once, every table updates in real time
Comes with a live Owner Portal

Run the entire menu yourself from one dashboard — no developer, no reprints:

  • Add & remove dishes and whole categories
  • Edit names, descriptions & prices
  • Swap food photos in seconds
  • Publish live — every table updates instantly
PWA · Offline-ready · Live Owner Portal
9:41●●● ◢ 100%
Maison d'Or
Digital Menu · Table 12
🛒 0
Mains
Starters
Drinks
Dessert
Scan to open the live menu

Points to your real menu page — once the site is live, any phone camera opens it.

PRODUCT 04
Live demo · flip & save contact

Digital Business Card

A tap-to-share digital card with a built-in QR and one-tap "Save Contact". No app, works on every phone, always up to date.

  • Real vCard download — try the "Save Contact" button
  • QR to share instantly, NFC-tap ready
  • Update your details once — every saved card follows
vCard · NFC · Apple/Google Wallet
Dan Riddle
Full-Stack Developer · Riddle Coding
riddlecoding.comtap to flip ⟳
Contact
E  danriddle@riddlecoding.com
W  riddlecoding.com
L  Remote · Worldwide
PRODUCT 05
Live demo · tap the links

Portal · Link-in-Bio

One beautiful link that holds everything — your socials, shop, booking, and latest drop. A mini-site for creators and brands, themeable in a tap.

  • Unlimited links, scheduling, click analytics
  • Custom themes & domains — try the theme toggle
  • Embeds: video, music, store, calendar
PWA · Themeable · Analytics
9:41●●● ◢ 100%
DR
Dan Riddle
@riddlecoding
Full-stack developer building fast, secure web products. Open for select projects.
Portfolio & Work Get in touch Read the Blog Download Résumé
Capabilities · Full Stack

The stack behind
everything I ship.

Frontend

Interfaces & experience
ReactNext.jsTypeScriptVueAstroTailwindGSAPThree.jsWebGL

Backend & Data

APIs, logic & storage
Node.jsPythonPostgreSQLRedisGraphQLPrismaRESTWebSocketsStripe

DevOps & Infra

Ship, scale & observe
DockerAWSVercelCI/CDNginxCloudflareLinuxTerraformGrafana
AI-Augmented Engineering

AI makes the product
better — not the shortcut.

I build with AI woven through the pipeline — to design faster, catch more bugs, and ship smarter features — while every line is reviewed by a human before it touches production.

01

AI-Assisted Design

Rapid moodboards, copy variants, and layout exploration — then hand-refined so the result feels crafted, never generated.

02

AI Pair-Programming

LLM copilots accelerate boilerplate, migrations, and test coverage — letting me spend the hours on architecture and edge cases.

03

Smart Product Features

Search, support agents, and recommendations powered by LLMs + RAG — grounded in your own data so answers stay accurate.

04

AI-Driven QA

Automated review, accessibility, and security passes flag issues before launch — humans make the final call on every release.

The guardrail: AI drafts, a human ships. Nothing reaches production without code review, automated tests, and a security pass. Customer data is never used to train third-party models, and AI features run with strict prompt-injection and output-validation safeguards.

Security & Safety · OWASP-Aligned

Built secure,
by default.

Security isn't a phase at the end — it's baked into every layer. Here's how I keep products, and your users' data, safe.

A03

Input Validation & XSS

Every input sanitised and validated server-side. Output encoding and a strict Content-Security-Policy shut down injection and XSS.

A07

Auth & Access Control

Hardened authentication, hashed credentials, MFA-ready, and least-privilege role-based access on every endpoint.

A02

Encryption Everywhere

TLS in transit, encryption at rest, secrets in a vault — never in code. Sensitive data is tokenised and minimised.

A06

Dependency Scanning

Automated SCA on every build flags vulnerable packages. Dependencies are pinned, audited, and patched on a schedule.

A04

Rate Limiting & Abuse

Per-IP and per-user rate limits, bot detection, and WAF rules protect against brute-force, scraping, and DDoS.

A09

Monitoring & Backups

Structured logging, real-time alerting, and automated encrypted backups with tested restores. You'll know before users do.

GDPR-conscious data handling HTTPS & HSTS enforced Security headers A+ Pen-test friendly
Ready when you are

Let's build something
worth shipping.

Have a product in mind, or a role to fill? I bring web products from idea to production — fast, secure, and built to last.